Dental Pulp Stem Cell Conditioned Medium for Tissue Repair
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Solution Overview
Problem
Current regenerative medicine using stem cells faces challenges such as invasive collection methods, age-related decline in stem cell effectiveness, and ethical concerns with embryonic stem cells, particularly for treating intractable neurological disorders like spinal cord injuries.
Innovation Solution
A composition and method utilizing a stem cell-conditioned medium derived from dental pulp stem cells, specifically containing cytokines like VEGF, HGF, IGF, PDGF, and TGF-β, for repairing damaged tissues without the need for direct stem cell transplantation, which can be administered via various routes including intranasal delivery for CNS diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bone marrow stem cells are used for regenerative medicine, then stem cell therapy can be provided, but invasive collection procedures and age-related decline in effectiveness occur
Solution Approach 1:
The invention extracts and utilizes stem cells from exfoliated deciduous teeth, which are naturally discarded medical waste, eliminating the need for invasive bone marrow aspiration. This extraction approach provides a non-invasive source of stem cells with high regenerative capacity while avoiding the procedural invasiveness and age-related limitations of bone marrow stem cells
Solution Approach 2:
The invention utilizes naturally exfoliated deciduous teeth as a self-provided stem cell source. Children naturally lose their baby teeth, and these teeth can be collected without any invasive procedures. The stem cells within these teeth serve the dual purpose of being easily obtainable and highly effective for regenerative therapy
2Reliability
If embryonic stem cells are used for neurological disorder treatment, then regenerative therapy can be achieved, but ethical concerns and safety issues arise
Solution Approach 1:
The invention uses exfoliated deciduous teeth, which are naturally discarded and would otherwise be disposed of, as a source of stem cells. This approach eliminates ethical concerns associated with embryonic stem cells while providing sufficient stem cells for therapeutic purposes. The teeth are naturally discarded medical waste that can be utilized without harming living organisms
Solution Approach 2:
The invention uses dental pulp stem cells as an intermediary source that bridges the gap between the need for effective regenerative therapy and the avoidance of ethical issues. These stem cells can differentiate into neural lineages and provide therapeutic benefits for neurological disorders without the ethical controversies surrounding embryonic stem cells
3Reliability
If stem cell transplantation is performed, then tissue repair can be achieved, but direct cell transplantation complexity and immune rejection risks increase
Solution Approach 1:
The invention extracts and utilizes growth factors and cytokines from stem cell culture supernatants, eliminating the need for direct stem cell transplantation. This approach simplifies the treatment procedure by transferring only the beneficial molecular components rather than entire cells, reducing procedural complexity and immune rejection risks while maintaining tissue repair effectiveness
Solution Approach 2:
The invention creates a simplified version of stem cell therapy by using culture supernatants that contain the essential growth factors and cytokines produced by stem cells. This copying approach captures the therapeutic benefits of stem cells without the complexities of cell transplantation, including immune rejection and procedural complexity
Data Source
AI summary
The present invention provides a damaged part treatment composition for repairing a damaged part of a target tissue that includes a stem cell-conditioned medium obtained by culturing stem cells; a damaged part treatment method for repairing or restoring a damaged part of a target tissue that includes administering the damaged part treatment composition to a patient having the target tissue for the damaged part treatment composition in an amount therapeutically effective for repairing the damaged part of the target tissue; a method of treating cerebral infarction that includes administering the damaged part treatment composition to a cerebral infarct patient in an amount effective for repairing a damaged part of the brain; and a method of treating a CNS disease that includes administering, as a CNS disease treatment composition, the damaged part treatment composition to a CNS disease patient in a therapeutically effective amount.